从以 XML 格式存储的 UML 模型中提取类和关系

Question

我目前正在使用不同的 UML/SysML 模型，并将其导出到 xml 文件中。我在文档中有不同的对象和关系，我想用 python 对它们进行聚类。对它们进行聚类的最佳方法是什么？我需要将它们拆分，以便我可以将它们加载到 Neo4J 图形数据库中并创建关系等...

代码：

    <xmi:XMI xmlns:uml="http://www.omg.org/spec/UML/20131001"
         xmlns:MD_Customization_for_SysML__additional_stereotypes="http://www.magicdraw.com/spec/Customization/180/SysML"
         xmlns:MD_Customization_for_Requirements__additional_stereotypes="http://www.magicdraw.com/spec/Customization/180/Requirements"
         xmlns:xmi="http://www.omg.org/spec/XMI/20131001"
         xmlns:Syndeia_Profile="http://www.magicdraw.com/schemas/Syndeia_Profile.xmi"
         xmlns:sysml="http://www.omg.org/spec/SysML/20150709/SysML"
         xmlns:StandardProfile="http://www.omg.org/spec/UML/20131001/StandardProfile">
   <xmi:documentation xmi:type="xmi:Documentation">
      <xmi:exporter>MagicDraw Clean XMI Exporter</xmi:exporter>
      <xmi:exporterVersion>19.0 v9</xmi:exporterVersion>
   </xmi:documentation>
   <uml:Model xmi:type="uml:Model" xmi:id="eee_1045467100313_135436_1" name="Model">
      <ownedComment xmi:type="uml:Comment" xmi:id="_12_1_8740266_1173856349343_83760_98"
                    body="Author:No Magic, Inc..&#xA;Created:3/11/12 3:54 PM.&#xA;Title:Water Supply sample of SysML 1.3.&#xA;Comment:.&#xA;">
         <annotatedElement xmi:idref="eee_1045467100313_135436_1"/>
      </ownedComment>
      <packagedElement xmi:type="uml:Package" xmi:id="_17_0_4_b0002e1_1331479812761_151548_11623"
                       name="Water Supply">
         <packagedElement xmi:type="uml:Class" xmi:id="_17_0_4_b0002e1_1331479843801_569989_11649"
                          name="Water Supply">
            <ownedAttribute xmi:type="uml:Port" xmi:id="_17_0_4_b0002e1_1331484591214_181062_11815"
                            name="sbank"
                            visibility="public"
                            aggregation="composite"
                            type="_17_0_4_b0002e1_1331479862547_919802_11715"
                            association="_17_0_4_b0002e1_1331484591214_617783_11814"/>
         </packagedElement>
         <packagedElement xmi:type="uml:Class" xmi:id="_17_0_4_b0002e1_1331479853224_712043_11682"
                          name="Water Client">
            <ownedAttribute xmi:type="uml:Port" xmi:id="_17_0_4_b0002e1_1331484598810_552927_11845"
                            name="faucet"
                            visibility="public"
                            aggregation="composite"
                            type="_17_0_4_b0002e1_1331479879251_133971_11781"
                            association="_17_0_4_b0002e1_1331484598809_289090_11844"/>
         </packagedElement>
         <packagedElement xmi:type="uml:Class" xmi:id="_17_0_4_b0002e1_1331479862547_919802_11715"
                          name="Spigot Bank">
            <ownedAttribute xmi:type="uml:Port" xmi:id="_17_0_4_b0002e1_1331479925237_470057_11848"
                            name="cold"
                            visibility="public"
                            aggregation="composite"
                            type="_17_0_4_b0002e1_1331479871034_682510_11748"
                            association="_17_0_4_b0002e1_1331479925236_20827_11847"/>
            <ownedAttribute xmi:type="uml:Property" xmi:id="_17_0_4_b0002e1_1331480379430_664819_11874"
                            name="deliveredTo"
                            visibility="private"
                            type="_17_0_4_b0002e1_1331479879251_133971_11781"
                            association="_17_0_4_b0002e1_1331480379430_858084_11873">
               <upperValue xmi:type="uml:LiteralUnlimitedNatural"
                           xmi:id="_17_0_4_b0002e1_1331480379432_140833_11877"
                           value="*"/>
            </ownedAttribute>
            <ownedAttribute xmi:type="uml:Port" xmi:id="_17_0_4_b0002e1_1331482799762_714366_11245"
                            name="hot"
                            visibility="public"
                            aggregation="composite"
                            type="_17_0_4_b0002e1_1331479871034_682510_11748"
                            association="_17_0_4_b0002e1_1331482799762_719985_11244"/>
         </packagedElement>
         <packagedElement xmi:type="uml:Class" xmi:id="_17_0_4_b0002e1_1331479871034_682510_11748"
                          name="Spigot">
            <ownedAttribute xmi:type="uml:Property" xmi:id="_17_0_4_b0002e1_1331484675907_844743_11899"
                            name="to"
                            visibility="private"
                            type="_17_0_4_b0002e1_1331479887273_166218_11814"
                            association="_17_0_4_b0002e1_1331489981789_245264_13223"/>
         </packagedElement>
         <packagedElement xmi:type="uml:Class" xmi:id="_17_0_4_b0002e1_1331479879251_133971_11781"
                          name="Faucet">
            <ownedAttribute xmi:type="uml:Property" xmi:id="_17_0_4_b0002e1_1331480379430_721368_11875"
                            name="suppliedBy"
                            visibility="private"
                            type="_17_0_4_b0002e1_1331479862547_919802_11715"
                            association="_17_0_4_b0002e1_1331480379430_858084_11873"/>
            <ownedAttribute xmi:type="uml:Port" xmi:id="_17_0_4_b0002e1_1331482457565_995011_11180"
                            name="cold"
                            visibility="public"
                            aggregation="composite"
                            type="_17_0_4_b0002e1_1331479887273_166218_11814"
                            association="_17_0_4_b0002e1_1331482457564_87810_11179"/>
            <ownedAttribute xmi:type="uml:Port" xmi:id="_17_0_4_b0002e1_1331483007588_704576_11318"
                            name="hot"
                            visibility="public"
                            aggregation="composite"
                            type="_17_0_4_b0002e1_1331479887273_166218_11814"
                            association="_17_0_4_b0002e1_1331483007588_935318_11317"/>
         </packagedElement>
         <packagedElement xmi:type="uml:Class" xmi:id="_17_0_4_b0002e1_1331479887273_166218_11814"
                          name="Faucet Inlet">
            <ownedAttribute xmi:type="uml:Property" xmi:id="_17_0_4_b0002e1_1331484675907_42347_11900"
                            name="from"
                            visibility="private"
                            type="_17_0_4_b0002e1_1331479871034_682510_11748"
                            association="_17_0_4_b0002e1_1331489981789_245264_13223"/>
         </packagedElement>
         <packagedElement xmi:type="uml:Association" xmi:id="_17_0_4_b0002e1_1331479925236_20827_11847">
            <memberEnd xmi:idref="_17_0_4_b0002e1_1331479925237_470057_11848"/>
            <memberEnd xmi:idref="_17_0_4_b0002e1_1331479925237_146867_11849"/>
            <ownedEnd xmi:type="uml:Property" xmi:id="_17_0_4_b0002e1_1331479925237_146867_11849"
                      visibility="private"
                      type="_17_0_4_b0002e1_1331479862547_919802_11715"
                      association="_17_0_4_b0002e1_1331479925236_20827_11847"/>
         </packagedElement>
         <packagedElement xmi:type="uml:AssociationClass"
                          xmi:id="_17_0_4_b0002e1_1331480379430_858084_11873"
                          name="Water Delivery">
            <memberEnd xmi:idref="_17_0_4_b0002e1_1331480379430_664819_11874"/>
            <memberEnd xmi:idref="_17_0_4_b0002e1_1331480379430_721368_11875"/>
            <ownedAttribute xmi:type="uml:Property" xmi:id="_17_0_4_b0002e1_1331483558228_41560_11392"
                            name="suppliedByInLink"
                            visibility="public"
                            type="_17_0_4_b0002e1_1331479862547_919802_11715"/>
            <ownedAttribute xmi:type="uml:Property" xmi:id="_17_0_4_b0002e1_1331484184029_995816_11287"
                            name="deliveredToInLink"
                            visibility="public"
                            type="_17_0_4_b0002e1_1331479879251_133971_11781"/>
            <ownedConnector xmi:type="uml:Connector" xmi:id="_17_0_4_b0002e1_1331484786667_880942_12016"
                            visibility="public"
                            type="_17_0_4_b0002e1_1331489981789_245264_13223">
               <end xmi:type="uml:ConnectorEnd" xmi:id="_17_0_4_b0002e1_1331484786668_54478_12017"
                    partWithPort="_17_0_4_b0002e1_1331484184029_995816_11287"
                    role="_17_0_4_b0002e1_1331483007588_704576_11318"/>
               <end xmi:type="uml:ConnectorEnd" xmi:id="_17_0_4_b0002e1_1331484786668_349716_12018"
                    partWithPort="_17_0_4_b0002e1_1331483558228_41560_11392"
                    role="_17_0_4_b0002e1_1331482799762_714366_11245"/>
            </ownedConnector>
            <ownedConnector xmi:type="uml:Connector" xmi:id="_17_0_4_b0002e1_1331484881857_44905_12226"
                            visibility="public"
                            type="_17_0_4_b0002e1_1331489981789_245264_13223">
               <end xmi:type="uml:ConnectorEnd" xmi:id="_17_0_4_b0002e1_1331484881857_184544_12227"
                    partWithPort="_17_0_4_b0002e1_1331484184029_995816_11287"
                    role="_17_0_4_b0002e1_1331482457565_995011_11180"/>
               <end xmi:type="uml:ConnectorEnd" xmi:id="_17_0_4_b0002e1_1331484881857_729524_12228"
                    partWithPort="_17_0_4_b0002e1_1331483558228_41560_11392"
                    role="_17_0_4_b0002e1_1331479925237_470057_11848"/>
            </ownedConnector>
         </packagedElement>
         <packagedElement xmi:type="uml:Association" xmi:id="_17_0_4_b0002e1_1331482457564_87810_11179">
            <memberEnd xmi:idref="_17_0_4_b0002e1_1331482457565_995011_11180"/>
            <memberEnd xmi:idref="_17_0_4_b0002e1_1331482457565_116662_11181"/>
            <ownedEnd xmi:type="uml:Property" xmi:id="_17_0_4_b0002e1_1331482457565_116662_11181"
                      visibility="private"
                      type="_17_0_4_b0002e1_1331479879251_133971_11781"
                      association="_17_0_4_b0002e1_1331482457564_87810_11179"/>
         </packagedElement>
         <packagedElement xmi:type="uml:Association" xmi:id="_17_0_4_b0002e1_1331482799762_719985_11244">
            <memberEnd xmi:idref="_17_0_4_b0002e1_1331482799762_714366_11245"/>
            <memberEnd xmi:idref="_19_0_8db0281_1517815224167_423100_13416"/>
            <ownedEnd xmi:type="uml:Port" xmi:id="_19_0_8db0281_1517815224167_423100_13416"
                      visibility="public"
                      aggregation="composite"
                      type="_17_0_4_b0002e1_1331479862547_919802_11715"
                      association="_17_0_4_b0002e1_1331482799762_719985_11244"/>
         </packagedElement>
         <packagedElement xmi:type="uml:Association" xmi:id="_17_0_4_b0002e1_1331483007588_935318_11317">
            <memberEnd xmi:idref="_17_0_4_b0002e1_1331483007588_704576_11318"/>
            <memberEnd xmi:idref="_19_0_8db0281_1517815267437_225388_13505"/>
            <ownedEnd xmi:type="uml:Port" xmi:id="_19_0_8db0281_1517815267437_225388_13505"
                      visibility="public"
                      aggregation="composite"
                      type="_17_0_4_b0002e1_1331479879251_133971_11781"
                      association="_17_0_4_b0002e1_1331483007588_935318_11317"/>
         </packagedElement>
         <packagedElement xmi:type="uml:Association" xmi:id="_17_0_4_b0002e1_1331484591214_617783_11814">
            <memberEnd xmi:idref="_17_0_4_b0002e1_1331484591214_181062_11815"/>
            <memberEnd xmi:idref="_17_0_4_b0002e1_1331484591215_151609_11816"/>
            <ownedEnd xmi:type="uml:Property" xmi:id="_17_0_4_b0002e1_1331484591215_151609_11816"
                      visibility="private"
                      type="_17_0_4_b0002e1_1331479843801_569989_11649"
                      association="_17_0_4_b0002e1_1331484591214_617783_11814"/>
         </packagedElement>
         <packagedElement xmi:type="uml:Association" xmi:id="_17_0_4_b0002e1_1331484598809_289090_11844">
            <memberEnd xmi:idref="_17_0_4_b0002e1_1331484598810_552927_11845"/>
            <memberEnd xmi:idref="_17_0_4_b0002e1_1331484598810_504945_11846"/>
            <ownedEnd xmi:type="uml:Property" xmi:id="_17_0_4_b0002e1_1331484598810_504945_11846"
                      visibility="private"
                      type="_17_0_4_b0002e1_1331479853224_712043_11682"
                      association="_17_0_4_b0002e1_1331484598809_289090_11844"/>
         </packagedElement>
         <packagedElement xmi:type="uml:AssociationClass"
                          xmi:id="_17_0_4_b0002e1_1331489981789_245264_13223"
                          name="Plumbing">
            <memberEnd xmi:idref="_17_0_4_b0002e1_1331484675907_844743_11899"/>
            <memberEnd xmi:idref="_17_0_4_b0002e1_1331484675907_42347_11900"/>
            <ownedAttribute xmi:type="uml:Property" xmi:id="_17_0_4_b0002e1_1331494244567_68138_14488"
                            name="fromInLink"
                            visibility="public"
                            type="_17_0_4_b0002e1_1331479871034_682510_11748"/>
            <ownedAttribute xmi:type="uml:Property" xmi:id="_17_0_4_b0002e1_1331494276271_506782_14535"
                            name="toInLink"
                            visibility="public"
                            type="_17_0_4_b0002e1_1331479887273_166218_11814"/>
            <ownedAttribute xmi:type="uml:Property" xmi:id="_17_0_4_b0002e1_1331494549107_816307_14733"
                            name="sf"
                            visibility="private"
                            aggregation="composite"
                            type="_17_0_4_b0002e1_1331494478778_89914_14621"/>
            <ownedAttribute xmi:type="uml:Property" xmi:id="_17_0_4_b0002e1_1331494552281_76711_14759"
                            name="ff"
                            visibility="private"
                            aggregation="composite"
                            type="_17_0_4_b0002e1_1331494478778_89914_14621"/>
            <ownedAttribute xmi:type="uml:Property" xmi:id="_17_0_4_b0002e1_1331494556862_550061_14787"
                            name="pp"
                            visibility="private"
                            aggregation="composite"
                            type="_17_0_4_b0002e1_1331494484054_177360_14663"/>
            <ownedConnector xmi:type="uml:Connector" xmi:id="_17_0_4_b0002e1_1331494564407_822564_14837"
                            visibility="public">
               <end xmi:type="uml:ConnectorEnd" xmi:id="_17_0_4_b0002e1_1331494564407_722669_14838"
                    role="_17_0_4_b0002e1_1331494244567_68138_14488"/>
               <end xmi:type="uml:ConnectorEnd" xmi:id="_17_0_4_b0002e1_1331494564407_525692_14839"
                    role="_17_0_4_b0002e1_1331494549107_816307_14733"/>
            </ownedConnector>
            <ownedConnector xmi:type="uml:Connector" xmi:id="_17_0_4_b0002e1_1331494567377_705937_14862"
                            visibility="public">
               <end xmi:type="uml:ConnectorEnd" xmi:id="_17_0_4_b0002e1_1331494567377_942014_14863"
                    role="_17_0_4_b0002e1_1331494549107_816307_14733"/>
               <end xmi:type="uml:ConnectorEnd" xmi:id="_17_0_4_b0002e1_1331494567381_536785_14864"
                    role="_17_0_4_b0002e1_1331494556862_550061_14787"/>
            </ownedConnector>
            <ownedConnector xmi:type="uml:Connector" xmi:id="_17_0_4_b0002e1_1331494570302_877043_14886"
                            visibility="public">
               <end xmi:type="uml:ConnectorEnd" xmi:id="_17_0_4_b0002e1_1331494570303_204656_14887"
                    role="_17_0_4_b0002e1_1331494556862_550061_14787"/>
               <end xmi:type="uml:ConnectorEnd" xmi:id="_17_0_4_b0002e1_1331494570303_788366_14888"
                    role="_17_0_4_b0002e1_1331494552281_76711_14759"/>
            </ownedConnector>
            <ownedConnector xmi:type="uml:Connector" xmi:id="_17_0_4_b0002e1_1331494573394_953166_14910"
                            visibility="public">
               <end xmi:type="uml:ConnectorEnd" xmi:id="_17_0_4_b0002e1_1331494573395_902533_14911"
                    role="_17_0_4_b0002e1_1331494552281_76711_14759"/>
               <end xmi:type="uml:ConnectorEnd" xmi:id="_17_0_4_b0002e1_1331494573395_95731_14912"
                    role="_17_0_4_b0002e1_1331494276271_506782_14535"/>
            </ownedConnector>
         </packagedElement>
         <packagedElement xmi:type="uml:Class" xmi:id="_17_0_4_b0002e1_1331490926495_30599_11277"
                          name="Bath">
            <generalization xmi:type="uml:Generalization"
                            xmi:id="_17_0_4_b0002e1_1331490926554_970806_11280"
                            general="_17_0_4_b0002e1_1331479853224_712043_11682"/>
         </packagedElement>
         <packagedElement xmi:type="uml:Class" xmi:id="_17_0_4_b0002e1_1331490934484_414154_11296"
                          name="Sink">
            <generalization xmi:type="uml:Generalization"
                            xmi:id="_17_0_4_b0002e1_1331490934552_537633_11299"
                            general="_17_0_4_b0002e1_1331479853224_712043_11682"/>
         </packagedElement>
         <packagedElement xmi:type="uml:Class" xmi:id="_17_0_4_b0002e1_1331490941572_58127_11316"
                          name="Shower">
            <generalization xmi:type="uml:Generalization"
                            xmi:id="_17_0_4_b0002e1_1331490941639_572075_11319"
                            general="_17_0_4_b0002e1_1331479853224_712043_11682"/>
         </packagedElement>
         <packagedElement xmi:type="uml:Class" xmi:id="_17_0_4_b0002e1_1331490977054_352736_11403"
                          name="House 2">
            <ownedAttribute xmi:type="uml:Property" xmi:id="_17_0_4_b0002e1_1331490987076_492068_11499"
                            visibility="private"
                            aggregation="composite"
                            type="_17_0_4_b0002e1_1331479843801_569989_11649"/>
            <ownedAttribute xmi:type="uml:Property" xmi:id="_17_0_4_b0002e1_1331490996883_5015_11549"
                            visibility="private"
                            aggregation="composite"
                            type="_17_0_4_b0002e1_1331490926495_30599_11277"/>
            <ownedAttribute xmi:type="uml:Property" xmi:id="_17_0_4_b0002e1_1331490999720_919695_11591"
                            visibility="private"
                            aggregation="composite"
                            type="_17_0_4_b0002e1_1331490934484_414154_11296"/>
            <ownedAttribute xmi:type="uml:Property" xmi:id="_17_0_4_b0002e1_1331491004321_497701_11635"
                            visibility="private"
                            aggregation="composite"
                            type="_17_0_4_b0002e1_1331490941572_58127_11316"/>
            <ownedConnector xmi:type="uml:Connector" xmi:id="_17_0_4_b0002e1_1331491252870_808147_12224"
                            visibility="public"
                            type="_17_0_4_b0002e1_1331480379430_858084_11873">
               <end xmi:type="uml:ConnectorEnd" xmi:id="_17_0_4_b0002e1_1331491252870_302956_12225"
                    partWithPort="_17_0_4_b0002e1_1331490996883_5015_11549"
                    role="_17_0_4_b0002e1_1331484598810_552927_11845"/>
               <end xmi:type="uml:ConnectorEnd" xmi:id="_17_0_4_b0002e1_1331491252871_848839_12226"
                    partWithPort="_17_0_4_b0002e1_1331490987076_492068_11499"
                    role="_17_0_4_b0002e1_1331484591214_181062_11815"/>
            </ownedConnector>
            <ownedConnector xmi:type="uml:Connector" xmi:id="_17_0_4_b0002e1_1331491255919_566254_12275"
                            visibility="public"
                            type="_17_0_4_b0002e1_1331480379430_858084_11873">
               <end xmi:type="uml:ConnectorEnd" xmi:id="_17_0_4_b0002e1_1331491255919_59410_12276"
                    partWithPort="_17_0_4_b0002e1_1331490999720_919695_11591"
                    role="_17_0_4_b0002e1_1331484598810_552927_11845"/>
               <end xmi:type="uml:ConnectorEnd" xmi:id="_17_0_4_b0002e1_1331491255920_462491_12277"
                    partWithPort="_17_0_4_b0002e1_1331490987076_492068_11499"
                    role="_17_0_4_b0002e1_1331484591214_181062_11815"/>
            </ownedConnector>
            <ownedConnector xmi:type="uml:Connector" xmi:id="_17_0_4_b0002e1_1331491259903_64972_12326"
                            visibility="public"
                            type="_17_0_4_b0002e1_1331480379430_858084_11873">
               <end xmi:type="uml:ConnectorEnd" xmi:id="_17_0_4_b0002e1_1331491259903_929047_12327"
                    partWithPort="_17_0_4_b0002e1_1331491004321_497701_11635"
                    role="_17_0_4_b0002e1_1331484598810_552927_11845"/>
               <end xmi:type="uml:ConnectorEnd" xmi:id="_17_0_4_b0002e1_1331491259904_856999_12328"
                    partWithPort="_17_0_4_b0002e1_1331490987076_492068_11499"
                    role="_17_0_4_b0002e1_1331484591214_181062_11815"/>
            </ownedConnector>
         </packagedElement>
         <packagedElement xmi:type="uml:Class" xmi:id="_17_0_4_b0002e1_1331491812810_405298_13180"
                          name="House">
            <ownedAttribute xmi:type="uml:Property" xmi:id="_17_0_4_b0002e1_1331491841483_901900_13276"
                            visibility="private"
                            aggregation="composite"
                            type="_17_0_4_b0002e1_1331479843801_569989_11649"/>
            <ownedAttribute xmi:type="uml:Property" xmi:id="_17_0_4_b0002e1_1331491845693_436520_13320"
                            visibility="private"
                            aggregation="composite"
                            type="_17_0_4_b0002e1_1331479853224_712043_11682"/>
            <ownedConnector xmi:type="uml:Connector" xmi:id="_17_0_4_b0002e1_1331491890913_206406_13432"
                            visibility="public"
                            type="_17_0_4_b0002e1_1331480379430_858084_11873">
               <end xmi:type="uml:ConnectorEnd" xmi:id="_17_0_4_b0002e1_1331491890914_884819_13433"
                    partWithPort="_17_0_4_b0002e1_1331491845693_436520_13320"
                    role="_17_0_4_b0002e1_1331484598810_552927_11845"/>
               <end xmi:type="uml:ConnectorEnd" xmi:id="_17_0_4_b0002e1_1331491890914_754931_13434"
                    partWithPort="_17_0_4_b0002e1_1331491841483_901900_13276"
                    role="_17_0_4_b0002e1_1331484591214_181062_11815"/>
            </ownedConnector>
            <ownedConnector xmi:type="uml:Connector" xmi:id="_17_0_4_b0002e1_1331492440897_915570_14035"
                            visibility="public"
                            type="_17_0_4_b0002e1_1331489981789_245264_13223">
               <end xmi:type="uml:ConnectorEnd" xmi:id="_17_0_4_b0002e1_1331492440898_16524_14036"`enter code here`
                    partWithPort="_17_0_4_b0002e1_1331484598810_552927_11845"
                    role="_17_0_4_b0002e1_1331483007588_704576_11318"/>
               <end xmi:type="uml:ConnectorEnd" xmi:id="_17_0_4_b0002e1_1331492440898_221417_14037"
                    partWithPort="_17_0_4_b0002e1_1331484591214_181062_11815"
                    role="_17_0_4_b0002e1_1331482799762_714366_11245"/>
            </ownedConnector>
            <ownedConnector xmi:type="uml:Connector" xmi:id="_17_0_4_b0002e1_1331492445388_364512_14088"
                            visibility="public"
                            type="_17_0_4_b0002e1_1331489981789_245264_13223">
               <end xmi:type="uml:ConnectorEnd" xmi:id="_17_0_4_b0002e1_1331492445388_864777_14089"
                    partWithPort="_17_0_4_b0002e1_1331484598810_552927_11845"
                    role="_17_0_4_b0002e1_1331482457565_995011_11180"/>
               <end xmi:type="uml:ConnectorEnd" xmi:id="_17_0_4_b0002e1_1331492445389_547113_14090"
                    partWithPort="_17_0_4_b0002e1_1331484591214_181062_11815"
                    role="_17_0_4_b0002e1_1331479925237_470057_11848"/>
            </ownedConnector>
         </packagedElement>
         <packagedElement xmi:type="uml:Class" xmi:id="_17_0_4_b0002e1_1331494478778_89914_14621"
                          name="Fitting"/>
         <packagedElement xmi:type="uml:Class" xmi:id="_17_0_4_b0002e1_1331494484054_177360_14663"
                          name="Pipe"/>
      </packagedElement>
   </uml:Model>

是否可以使用 ElementTree 函数来处理这些文件？

Answer 1

ElementTree 可以工作，这是一个例子

import xml.etree.ElementTree as ET

file_path = ...

with open(file_path, 'r', encoding='utf-8') as file:
    xml_data = file.read()

root = ET.fromstring(xml_data)

# Define namespaces
namespaces = {
    'xmi': 'http://www.omg.org/spec/XMI/20131001',
    'uml': 'http://www.omg.org/spec/UML/20131001'
}

# Extract the model name
model_element = root.find('.//uml:Model', namespaces)
model_name = model_element.get(
    'name') if model_element is not None else "Model element not found."
print(f"Model Name: {model_name}")

# Iterate over model_element as list
if model_element is not None:
    children = list(model_element)
    for child in children:
        print(f"Child Element: {child.tag}, Name: {child.get('name')}")

ElementTree 是 Python 标准库的一部分，因此不需要额外安装。提供基本的XML解析和生成能力，适合处理简单的XML文档。

考虑使用lxml，一个需要通过安装的第三方库

pip install lxml

它提供了更强大的功能，包括对 XML 和 HTML 的支持。它支持 XPath、XSLT 以及更复杂的 XML 操作。